时间在被小齿轮滴答作响时是死的；只有当钟停止时，时间才会复活。

I was asked to act when I couldn't act. I was asked to sing 'Funny Face' when I couldn't sing, and dance with Fred Astaire when I couldn't dance. Do what you can't do.

The moment you define your style, you limit your potential.

Innovation in forestry isn't about replacing nature with technology, but using technology to better understand and work with nature.

真实的生活缺席了。我们不在这个世界上。

学习数学的唯一方法就是做数学。